IoanIoviț Popescu's Geometrical Optics is essentially a book about light rays: about what can be seen in our universe. The name of the author is well-known to physicists all over the world. He is the scientist who predicted the Etheron in the year 1982. We have already published the book of that unique discovery: Ether and Etherons. A Possible Reappraisal of the Concept of Ether,http://editura.mttlc.ro/iovitz-etherons.html.
What students have to know about the book we are publishing now is that it was handwritten by its author over and over again, dozens of timesformulas, drawings and everything. It was meant to be published as such, in facsimile, and its cover was intentionally black. It was so much used by students at the library of the Romanian Faculty of Physics, that all the copies are almost illegible now...
Very soon, we also mean to publish the original book as facsimile in Romanian. For the time being, we are offering students all over the world its English version, reminding them that IoanIoviț Popescu is the first physicist who brought to light and gave a name to the smallest particle in our universe: the Etheron.

Lidia Vianu

Please click on the link below and choose "Save file" to download the book in .pdf format